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sd-id128: expose ID128_UUID_FORMAT_STR

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It is generally useful, and can be made public in the same manner that
SD_ID128_FORMAT_STR is.
This commit is contained in:
Zbigniew Jędrzejewski-Szmek 2019-04-05 13:46:33 +02:00
parent 949082ac21
commit 38df8d3f52
5 changed files with 11 additions and 4 deletions
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1
man/rules/meson.build
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@ -101,6 +101,7 @@ manpages = [
'SD_ID128_MAKE',
'SD_ID128_MAKE_STR',
'SD_ID128_NULL',
'SD_ID128_UUID_FORMAT_STR',
'sd_id128_equal',
'sd_id128_is_null',
'sd_id128_t'],

6
man/sd-id128.xml
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@ -24,6 +24,7 @@
<refname>SD_ID128_NULL</refname>
<refname>SD_ID128_CONST_STR</refname>
<refname>SD_ID128_FORMAT_STR</refname>
<refname>SD_ID128_UUID_FORMAT_STR</refname>
<refname>SD_ID128_FORMAT_VAL</refname>
<refname>sd_id128_equal</refname>
<refname>sd_id128_is_null</refname>
@ -119,6 +120,11 @@ int main(int argc, char **argv) {
return 0;
}</programlisting>
<para><function>SD_ID128_UUID_FORMAT_STR()</function> is similar to
<function>SD_ID128_FORMAT_STR()</function> but includes separating hyphens to conform to the
"<ulink url="https://en.wikipedia.org/wiki/Universally_unique_identifier#Format">canonical representation</ulink>".
</para>
<para>Use <function>sd_id128_equal()</function> to compare two 128-bit IDs:</para>
<programlisting>int main(int argc, char *argv[]) {

3
src/libsystemd/sd-id128/id128-util.h
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@ -10,9 +10,6 @@
char *id128_to_uuid_string(sd_id128_t id, char s[37]);
/* Like SD_ID128_FORMAT_STR, but formats as UUID, not in plain format */
#define ID128_UUID_FORMAT_STR "%02x%02x%02x%02x-%02x%02x-%02x%02x-%02x%02x-%02x%02x%02x%02x%02x%02x"
bool id128_is_valid(const char *s) _pure_;
typedef enum Id128Format {

3
src/systemd/sd-id128.h
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@ -63,6 +63,9 @@ int sd_id128_get_boot_app_specific(sd_id128_t app_id, sd_id128_t *ret);
#define SD_ID128_FORMAT_STR "%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x"
#define SD_ID128_FORMAT_VAL(x) (x).bytes[0], (x).bytes[1], (x).bytes[2], (x).bytes[3], (x).bytes[4], (x).bytes[5], (x).bytes[6], (x).bytes[7], (x).bytes[8], (x).bytes[9], (x).bytes[10], (x).bytes[11], (x).bytes[12], (x).bytes[13], (x).bytes[14], (x).bytes[15]
/* Like SD_ID128_FORMAT_STR, but formats as UUID, not in plain format */
#define SD_ID128_UUID_FORMAT_STR "%02x%02x%02x%02x-%02x%02x-%02x%02x-%02x%02x-%02x%02x%02x%02x%02x%02x"
#define SD_ID128_CONST_STR(x) \
((const char[SD_ID128_STRING_MAX]) { \
((x).bytes[0] >> 4) >= 10 ? 'a' + ((x).bytes[0] >> 4) - 10 : '0' + ((x).bytes[0] >> 4), \

2
src/test/test-id128.c
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@ -52,7 +52,7 @@ int main(int argc, char *argv[]) {
assert_se(streq(q, UUID_WALDI));
b = mfree(b);
assert_se(asprintf(&b, ID128_UUID_FORMAT_STR, SD_ID128_FORMAT_VAL(ID128_WALDI)) == 36);
assert_se(asprintf(&b, SD_ID128_UUID_FORMAT_STR, SD_ID128_FORMAT_VAL(ID128_WALDI)) == 36);
printf("waldi4: %s\n", b);
assert_se(streq(q, b));